| // Copyright (c) 2022, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| package com.android.tools.r8.synthesis; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.graph.DexAnnotation; |
| import com.android.tools.r8.graph.DexEncodedAnnotation; |
| import com.android.tools.r8.references.Reference; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import com.android.tools.r8.utils.StringUtils; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import java.nio.file.Path; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class SyntheticMarkerDexTest extends TestBase { |
| |
| static final String EXPECTED = StringUtils.lines("Hello, world"); |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withDefaultDexRuntime().withApiLevel(AndroidApiLevel.B).build(); |
| } |
| |
| public SyntheticMarkerDexTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| Path out = |
| testForD8(parameters.getBackend()) |
| .setMinApi(parameters.getApiLevel()) |
| .setIntermediate(true) |
| .addProgramClasses(TestClass.class) |
| .compile() |
| .inspect(this::checkSyntheticClassIsMarked) |
| .writeToZip(); |
| testForD8(parameters.getBackend()) |
| .setMinApi(parameters.getApiLevel()) |
| .addProgramFiles(out) |
| // Use intermediate again to preserve synthetics. |
| .setIntermediate(true) |
| // Disable desugaring so we are sure the lambda synthetic is created in the first round. |
| .disableDesugaring() |
| .compile() |
| .inspect(this::checkSyntheticClassIsMarked) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| private void checkSyntheticClassIsMarked(CodeInspector inspector) { |
| // Compilation gives rise to the main class plus one lambda. |
| assertEquals(2, inspector.allClasses().size()); |
| inspector.forAllClasses( |
| clazz -> { |
| if (!clazz.getFinalReference().equals(Reference.classFromClass(TestClass.class))) { |
| // This should be the lambda class. |
| DexAnnotation[] annotations = clazz.getDexProgramClass().annotations().annotations; |
| assertEquals(1, annotations.length); |
| DexEncodedAnnotation annotation = annotations[0].annotation; |
| assertEquals(2, annotation.elements.length); |
| assertEquals( |
| "com.android.tools.r8.annotations.SynthesizedClassV2", |
| annotation.type.toSourceString()); |
| } |
| }); |
| } |
| |
| public static class TestClass { |
| |
| public static void run(Runnable r) { |
| r.run(); |
| } |
| |
| public static void main(String[] args) { |
| run(() -> System.out.println("Hello, world")); |
| } |
| } |
| } |